Needle implantation device and method using vibration combined with vacuum

Abstract

A needle implanting device utilizing vibration combined with vacuum comprises: a base fixed on a vibration table, the interior of the base having a vacuum chamber that can be evacuated by a vacuum pump, the top of the base having a needle implanting plate placement platform, the needle implanting plate placement platform having a first through hole in the up-down direction corresponding to the needle implanting area of ​​the needle implanting plate, the first through hole being connected to the vacuum chamber, the needle implanting plate placement platform having a positioning piece for positioning a pressure cover, the positioning piece being located around the first through hole; a pressure cover for pressing the needle implanting plate, the pressure cover having a second through hole in the up-down direction corresponding to the needle implanting area; a pressing mechanism that can be pressed down and locked to apply continuous downward pressure to the pressure cover. The present invention has high needle implanting efficiency and is suitable for needles of various diameters or lengths.

Description

Technical Field

[0001] The present invention relates to the field of needle implantation technology, and in particular to a needle implantation device and method utilizing vibration combined with vacuum. Background Art

[0002] With the advancement of packaging technology, the integration of chips has been continuously improved, the number of I / O pins has increased dramatically, power consumption has also increased, and the requirements for integrated circuit packaging have become more stringent. Therefore, in the 1990s, ball grid array packaging (i.e. BGA packaging) began to be used in production. As soon as this technology appeared, it became the best choice for high-density, high-performance, multi-pin packaging such as CPUs, motherboard south and north bridge chips. However, due to the characteristics of ball pins, BGA packaging occupies a large area of ​​the substrate. In order to make the packaged substrate smaller and more integrated, the packaging industry began to turn to the application and development of needle pin array packaging. The biggest difference between needle planting and ball planting is that the ball is not directional, while the needle has a certain direction. Therefore, needle planting is more difficult and has higher requirements than ball planting.

[0003] Existing needle implantation technology mainly uses mechanical pin insertion, that is, a high-speed motion mechanism with a clamp at the end is used to implant the needles onto the substrate one by one. A maximum of 10 needles can be implanted per second. This is inefficient, time-consuming, and cannot correspond to needles smaller than a certain diameter or length. Summary of the invention

[0004] Based on this, in order to solve the above technical problems, a needle implantation device and method utilizing vibration combined with vacuum is provided.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A needle implantation device utilizing vibration combined with vacuum, comprising:

[0007] A base fixed on the vibration table, wherein the interior of the base has a vacuum chamber that can be evacuated by a vacuum pumping device, and the top of the base has a needle-planting plate placement platform, and the needle-planting plate placement platform has a first through hole in the up-down direction corresponding to the needle-planting area of ​​the needle-planting plate, and the first through hole is connected to the vacuum chamber, and the needle-planting plate placement platform has a positioning piece for positioning the pressure cover, and the positioning piece is located around the first through hole;

[0008] A pressure cover for pressing the needle implanting plate, wherein the pressure cover has a second through hole in the up-down direction and corresponding to the needle implanting area;

[0009] A pressing mechanism that can be pressed down and locked to apply continuous downward pressure to the gland.

[0010] The first through hole and the second through hole are slightly larger than the needle implantation area.

[0011] The pressure cover includes a positioning plate and a pressure plate. The lower surface of the positioning plate has a limiting groove for covering the needle implanting plate and limiting it front, back, left and right. The positioning plate has a third through hole in the up and down directions corresponding to the needle implanting area. The third through hole is slightly larger than the needle implanting area. The pressure plate is pressed on the positioning plate and the second through hole is formed thereon. The second through hole has an annular extension portion extending downward into the third through hole to press the needle implanting plate. The outer diameter of the annular extension portion is adapted to the inner diameter of the third through hole.

[0012] The depth of the second through hole is greater than or equal to the length of the needle.

[0013] The pressing plate is made of graphite.

[0014] The positioning member comprises four positioning columns arranged symmetrically left and right and four positioning platforms arranged symmetrically front and back. There are four pressing mechanisms, and the four pressing mechanisms are respectively fixed on the four positioning platforms.

[0015] The pressing mechanism includes an articulated seat, a movable arm, a pressure head, a transmission arm and a handle. The articulated seat is fixed on the positioning platform. The middle part of the articulated seat has a stop slope facing the rear side and used to stop the rear end of the transmission arm. The movable arm has a first fixed end and a second fixed end. The first fixed end and the second fixed end are located at the rear side of the free end, and the second fixed end is lower than the first fixed end. The second fixed end is hinged to the front side of the articulated seat for front and rear rotation. The pressure head is fixed to the free end of the movable arm. The front end of the transmission arm is hinged to the first fixed end for front and rear rotation. The handle has a third fixed end and a fourth fixed end. The third fixed end and the fourth fixed end are located below the free end of the handle, and the fourth fixed end is lower than the third fixed end. The handle forms a free handle. The third fixed end is hinged to the rear end of the transmission arm for front and rear rotation. The fourth fixed end is hinged to the rear side of the articulated seat for front and rear rotation.

[0016] The hinge seat is composed of a support plate, the support plate is arranged vertically, and a fixing plate is provided at the lower end thereof, the fixing plate is fixed to the positioning platform, the upper front part of the support plate forms a first hinge angle, the upper rear part forms a second hinge angle, the first hinge angle is higher than the second hinge angle, the first hinge angle is hinged to the second fixed end, the second hinge angle is hinged to the fourth fixed end, and the stop inclined surface is the rear side inclined surface of the second hinge angle;

[0017] The transmission arm is arranged obliquely with the front higher and the rear lower, and a protrusion is formed at the rear end thereof to match the stop slope.

[0018] The present invention also relates to a needle implantation method using the needle implantation device using vibration combined with vacuum of the present invention, comprising:

[0019] Fix the base to the vibration table;

[0020] Placing the needle implanting plate on the needle implanting plate placement platform of the base, aligning the needle implanting area of ​​the needle implanting plate with the first through hole, and pressing the pressure cover onto the needle implanting plate through a pressing mechanism, aligning the second through hole with the needle implanting area;

[0021] Pour at least twice the number of needles required to be implanted in the needle implantation plate into the needle implantation area through the second through hole;

[0022] The vibration table is started, and the vacuum chamber in the base is evacuated by a vacuum pumping device to implant the needle into the implantation needle plate.

[0023] This program also includes:

[0024] After the needles are implanted in the needle plate, remove the gland and use a brush to brush the remaining needles into the pre-prepared recycling box;

[0025] Remove the needle plate.

[0026] The invention has high needle implantation efficiency and is suitable for needles of various diameters or lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments:

[0028] Figure 1 It is a structural schematic diagram of the present invention;

[0029] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention;

[0030] Figure 3 An exploded view of the present invention;

[0031] Figure 4 It is a structural schematic diagram of the positioning plate of the present invention;

[0032] Figure 5 It is a structural schematic diagram of the pressing plate of the present invention;

[0033] Figure 6 It is a structural schematic diagram of the pressing mechanism of the present invention. DETAILED DESCRIPTION

[0034] like Figure 1 As shown, a needle implantation device utilizing vibration combined with vacuum is used. The purpose of the device is to implant a needle into a circuit board which can be vibrated.

[0035] The device of the present invention includes a base 1100 , a pressure cover 1200 , a pressing mechanism 1300 , a vibration table 1400 and a vacuum pumping device 1500 .

[0036] like Figure 2as well as Figure 3 As shown, the base 1100 is a rectangular box body, which is fixed on the vibration table 1400 and has a vacuum chamber inside.

[0037] The top of the base 1100 is provided with a needle implant plate placement platform 1110, the bottom is provided with a fixing plate 1120 fixed to the vibration table 1400, and the rear side is provided with a vacuum joint 1130.

[0038] like Figure 3 As shown, the needle implanting plate 20 is a circuit board having a needle implanting area 21 thereon, wherein the needle implanting area 21 has a plurality of needle implanting holes, and the needle implanting holes are stepped holes which are wide at the upper section and narrow at the lower end. The upper section is used for introducing the needle, and the diameter is generally 2.5 mm, and the lower section is used for fixing the needle, and the diameter is generally 1.5 mm.

[0039] The placement platform 1110 has a first through hole 1111 in the up and down directions corresponding to the needle implanting area 21 of the needle implanting plate 20 . The first through hole 1111 is connected to the first vacuum chamber. The placement platform 1110 has a positioning piece for positioning the pressure cover 1200 . The positioning piece is located around the first through hole 1111 .

[0040] The pressure cover 1200 is used to press the needle implanting plate 20 , and has a second through hole 1210 in the up-down direction corresponding to the needle implanting area 21 .

[0041] The pressing mechanism 1300 can be pressed down and locked, thereby applying continuous downward pressure to the pressing cover 1200 .

[0042] When in use, the base 1100 is fixed on the vibration table 1400, and the circuit board is pressed onto the needle implanting plate placement platform 1110 through the pressing mechanism 1300 and the pressure cover 1200, and the needle is poured into the needle implanting area of ​​the circuit board through the second through hole 1210, and the vibration table 1400 is started. At the same time, the vacuum chamber is evacuated by the vacuum equipment 1500, and the needle is implanted into the circuit board under the action of vibration and vacuum suction, and the needle implantation efficiency is high.

[0043] In this embodiment, the first through hole 1111 and the second through hole 1210 are slightly larger than the needle implantation area 21 .

[0044] In this embodiment, in order to prevent the needle from jumping out of the second through hole 1210, the depth of the second through hole 1210 is greater than or equal to the length of the needle.

[0045] In this embodiment, the pressure cover 1210 includes a positioning plate 1220 and a pressure plate 1230 . The positioning plate 1220 limits the front, back, left, and right positions of the needle implanting plate 20 , and the pressure plate 1230 limits the upper and lower positions of the needle implanting plate 20 .

[0046] Preferably, the pressure plate 1230 is made of graphite to prevent the needles from generating static electricity and agglomerating and adsorbing due to friction during vibration, and since the pressure cover 1210 is composed of the positioning plate 1220 and the pressure plate 1230, when needle implantation plates of different sizes are adjusted, it is only necessary to replace the corresponding positioning plate 1220, without replacing the entire pressure cover, thereby reducing costs (graphite plates are more expensive).

[0047] Specifically, Figure 3 as well as Figure 4 As shown, the lower surface of the positioning plate 1220 has a limiting groove 1221 for covering the needle implanting plate 20 and limiting the front, back, left and right positions. The positioning plate 1220 has a third through hole 1222 in the up and down direction corresponding to the needle implanting area 21. The third through hole 1222 is slightly larger than the needle implanting area 21. Figure 3 as well as Figure 5 As shown, the pressure plate 1230 is pressed onto the positioning plate 1220, on which the above-mentioned second through hole 1210 is formed. The second through hole 1210 has an annular extension portion 1211 extending downward into the third through hole 1222 to press the needle implanting plate 20. The outer diameter of the annular extension portion 1211 is adapted to the inner diameter of the third through hole 1222, so that the annular extension portion 1211 not only serves to limit the upper and lower positions of the needle implanting plate 20, but also serves to position the pressure plate 1230.

[0048] Specifically, Figure 2 as well as Figure 3 As shown, the positioning member includes four positioning columns 1112 arranged symmetrically left and right and four positioning platforms 1113 arranged symmetrically front and back. There are four pressing mechanisms 1300 , and the four pressing mechanisms 1300 are fixed on the four positioning platforms 1113 respectively.

[0049] The positioning plate 1220 is positioned by four positioning columns 1112 and four positioning platforms 1113, and then the needle implanting plate 20 is positioned. At the same time, the pressure plate 1230 is positioned by the annular extension portion 1211 to ensure that when implanting the needle, the needle implanting area 21 is aligned with the first through hole 1111 and the second through hole 1210 up and down (the center lines coincide).

[0050] In this embodiment, if Figure 6 As shown, the pressing mechanism 1300 includes a hinge seat 1310 , a movable arm 1320 , a pressing head 1330 , a transmission arm 1340 and a handle 1350 .

[0051] The articulated seat 1310 is fixed on the positioning platform 1113, the movable arm 1320 has a first fixed end 1321 and a second fixed end 1322, the first fixed end 1321 and the second fixed end 1322 are located at the rear side of the free end, and the second fixed end 1322 is lower than the first fixed end 1321, the second fixed end 1322 is hinged to the front side of the articulated seat 1310 for front-to-back rotation, the pressure head 1330 is fixed to the free end of the movable arm 1320, the front end of the transmission arm 1340 is hinged to the first fixed end 1321 for front-to-back rotation, the handle 1350 has a third fixed end 1351 and a fourth fixed end 1352, the third fixed end 1351 and the fourth fixed end 1352 are located below the free end of the handle 1350 The fourth fixed end 1352 is lower than the third fixed end 1351, the handle 1350 forms a free handle 1353, the third fixed end 1351 is hinged to the rear end of the transmission arm 1340 for forward and backward rotation, and the fourth fixed end 1352 is hinged to the rear side of the articulated seat 1310 for forward and backward rotation, wherein the middle part of the articulated seat 1310 has a stop slope 1311 facing the rear side for stopping the rear end of the transmission arm 1340, the operating handle 1353 causes the handle 1350 to rotate forward and backward, driving the transmission arm 1340 to move forward and backward, and then driving the movable arm 1320 to rotate forward and backward, when the rear end of the transmission arm 1340 is stopped by the stop slope 1311, the pressure head 1330 on the movable arm 1320 just presses the pressure cover 1200.

[0052] Specifically, the articulated seat 1310 is composed of a support plate 1311, which is arranged vertically and has a fixing plate at its lower end, which is fixed to the positioning platform 1113 by bolts, and the upper front part of the support plate 1311 forms a first articulation angle 1311a, and the upper rear part forms a second articulation angle 1311b, the first articulation angle 1311a is higher than the second articulation angle 1311b, the first articulation angle 1311a is hinged to the second fixed end 1322, and the second articulation angle 1311b is hinged to the fourth fixed end 1352, and the stop slope 1311 is the rear side slope of the second articulation angle 1311b.

[0053] The transmission arm 1340 is arranged to be tilted with the front higher and the rear lower, and a protrusion 1341 is formed at the rear end thereof to cooperate with the stop slope 1311 .

[0054] The present invention also relates to a needle implantation method using vibration combined with vacuum, the method comprising the following steps:

[0055] 1. Fix the base 1100 on the vibration table 1400.

[0056] 2. Place the circuit board on the needle implanting plate placement platform 1110 of the base 1100, align the needle implanting area of ​​the circuit board with the first through hole 1111, and press the pressure cover 1200 onto the circuit board through the pressing mechanism 1300 to align the second through hole 1210 with the needle implanting area.

[0057] 3. Pour at least twice the number of needles required to be implanted into the circuit board into the needle implantation area through the second through hole 1210. In this embodiment, the number of needles is 2-3 times the number of circuit boards required to be implanted.

[0058] 4. Start the vibration table 1400, and use the vacuum device 1500 to evacuate the vacuum chamber in the base 1100, so that the needle is implanted into the circuit board. The needle will stand up during the vibration process, and then the needle will be sucked into the implant hole by vacuuming.

[0059] 5. After the needle implantation is completed, remove the pressure cover 1200 and use a brush to brush the remaining needles into the pre-prepared recycling box.

[0060] 6. Remove the circuit board and the entire needle implantation process is completed.

[0061] The invention has high needle implantation efficiency and is suitable for needles of various diameters or lengths.

[0062] However, those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A needle implantation device utilizing vibration combined with vacuum, characterized in that: include: A base fixed on the vibration table, the base is a rectangular box body, the interior of which has a vacuum chamber that can be evacuated by a vacuum pumping device, the top of the base has a needle-planting plate placement platform, the needle-planting plate placement platform has a first through hole in the up and down direction corresponding to the needle-planting area of ​​the needle-planting plate, the first through hole is connected to the vacuum chamber, the needle-planting plate placement platform has a positioning piece for positioning the pressure cover, the positioning piece is located around the first through hole, and includes four positioning columns arranged symmetrically left and right and four positioning platforms arranged symmetrically front and back; A pressure cover for pressing the needle implanting plate, wherein the pressure cover has a second through hole in the up-down direction and corresponding to the needle implanting area; A pressing mechanism that can be pressed down and locked to apply continuous downward pressure to the pressure cover, the pressing mechanism is four, and the four pressing mechanisms are respectively fixed on the four positioning platforms, the pressing mechanism includes an articulated seat, a movable arm, a pressure head, a transmission arm and a handle, the articulated seat is fixed on the positioning platform, the middle part of the articulated seat has a stop slope facing the rear side and used to stop the rear end of the transmission arm, the movable arm has a first fixed end and a second fixed end, the first fixed end and the second fixed end are located on the rear side of the free end, and the second fixed end is lower than the first fixed end, the second fixed end is hinged to the front side of the articulated seat for front and rear rotation, the pressure head is fixed to the free end of the movable arm, the front end of the transmission arm is hinged to the first fixed end for front and rear rotation, the handle has a third fixed end and a fourth fixed end, the third fixed end and the fourth fixed end are located below the free end of the handle, and the fourth fixed end is lower than the third fixed end, the handle forms a free handle, the third fixed end is hinged to the rear end of the transmission arm for front and rear rotation, and the fourth fixed end is hinged to the rear side of the articulated seat for front and rear rotation.

2. The needle implantation device using vibration combined with vacuum according to claim 1, characterized in that: The first through hole and the second through hole are slightly larger than the needle implantation area.

3. The needle implantation device using vibration combined with vacuum according to claim 2, characterized in that: The pressure cover includes a positioning plate and a pressure plate. The lower surface of the positioning plate has a limiting groove for covering the needle implanting plate and limiting it front, back, left and right. The positioning plate has a third through hole in the up and down directions corresponding to the needle implanting area. The third through hole is slightly larger than the needle implanting area. The pressure plate is pressed on the positioning plate and the second through hole is formed thereon. The second through hole has an annular extension portion extending downward into the third through hole to press the needle implanting plate. The outer diameter of the annular extension portion is adapted to the inner diameter of the third through hole.

4. The needle implantation device using vibration combined with vacuum according to claim 3, characterized in that: The depth of the second through hole is greater than or equal to the length of the needle.

5. The needle implantation device using vibration combined with vacuum according to claim 4, characterized in that: The pressing plate is made of graphite.

6. The needle implantation device using vibration combined with vacuum according to claim 1, characterized in that: The hinge seat is composed of a support plate, the support plate is arranged vertically, and a fixing plate is provided at the lower end thereof, the fixing plate is fixed to the positioning platform, the upper front part of the support plate forms a first hinge angle, the upper rear part forms a second hinge angle, the first hinge angle is higher than the second hinge angle, the first hinge angle is hinged to the second fixed end, the second hinge angle is hinged to the fourth fixed end, and the stop inclined surface is the rear side inclined surface of the second hinge angle; The transmission arm is arranged obliquely with the front higher and the rear lower, and a protrusion is formed at the rear end thereof to match the stop slope.

7. The needle implantation method using a needle implantation device combining vibration and vacuum according to claim 1, characterized in that: include: Fix the base to the vibration table; Placing the needle implanting plate on the needle implanting plate placement platform of the base, aligning the needle implanting area of ​​the needle implanting plate with the first through hole, and pressing the pressure cover onto the needle implanting plate through a pressing mechanism, aligning the second through hole with the needle implanting area; Pour at least twice the number of needles required to be implanted in the needle implantation plate into the needle implantation area through the second through hole; The vibration table is started, and the vacuum chamber in the base is evacuated by a vacuum pumping device to implant the needle into the implantation needle plate.

8. The needle implantation method according to claim 7, characterized in that: Also includes: After the needles are implanted in the needle plate, remove the gland and use a brush to brush the remaining needles into the pre-prepared recycling box; Remove the needle plate.

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